eitheradj.任一的；两方的pron.任一adv.也（用于否定句中）conj.或者（常用于either...or...的结构中）either east or west或东或西either good or evil性可善可恶论either ... or不是 ... 就是 ...要么 ... 要么 ...Either sink or swim成败在此一举Either will be ok.都行。either-or facility两可融资Either go or stay.要末去，要末留下。either-OR operation“异或”操作either large or small或大或小either-or situation必须作出决定的场合

1. I like neither of the designs. (=I don't like either of the designs.)
   这两个花样我都不喜欢。
2. You may take either of the roads.
   两条路你随便走哪一条。
3. I won't trust either of the two brothers; they are tarred with the same brush.
   弟兄两个我谁也不相信，他们都是一路货色。
4. Either of them is good enough.
   他们中的任何一个都够好的了。
5. Either of the two parts of an eyeglasses frame that extend over or around the ear.
   眼镜脚使眼镜搭到或套到耳朵上的两个部分中的任何一个
6. Either of the lateral halves of the cerebrum; a cerebral hemisphere.
   大脑半球大脑侧面半部分的任何一个; 大脑半球